Re: [boost] library proposal : odeint

Subject: Re: [boost] library proposal : odeint
From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2010-07-11 05:56:03

> -----Original Message-----
> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of Matthias Troyer
> Sent: Sunday, July 11, 2010 5:26 AM
> To: boost_at_[hidden]
> Subject: Re: [boost] library proposal : odeint
 
> On 9 Jul 2010, at 15:46, Karsten Ahnert wrote:
> >
> >> I have one question - have you considered if your library will 'play nicely' with the Boost.Units library?  If it
will,
> >> the units error detection and convenience of output with units, would seem to make it much more attractive.
> >
> > At the moment it is not possible to use Boost.Units. We are redesigning
> > the library and it might be possible to enable Boost.Units at some
> > point. But I suspect, that Boost.Units will not work in general with
> > odeint. I can go in details if you like.
> 
> I would be very interested in why it would not work with Boost.Units since I might be interested in using such a
library with my own
> datatypes instead of double or std::complex<double>

I have also have some interest in using a user defined 'uncertain type' - one that includes not just a value but also an
uncertainty - a sort of 'plus or minus' (and calculation operators propagate the uncertainties).

Can you see any reason why it would not work with a user-defined type like that?

(Leaving aside downsides like much longer compute time).

But perhaps there are other better ways of estimating uncertainties of the final result?

Paul

---
Paul A. Bristow
Prizet Farmhouse
Kendal, UK   LA8 8AB
[phone], mobile [phone]
pbristow_at_[hidden]